Question 1

How do I scan for Bluetooth devices with CombineCoreBluetooth?

Accepted Answer

Use the CentralManager's scanForPeripherals method, which returns a publisher of PeripheralDiscovery values. Subscribe with Combine operators like first() or filter() to handle discoveries reactively, as demonstrated in the README code snippet.

Question 2

CombineCoreBluetooth vs CoreBluetooth delegate: which is better?

Accepted Answer

CombineCoreBluetooth is better if you're already using Combine and want declarative, reactive code with less boilerplate. Plain CoreBluetooth is preferable for maximum control, legacy codebases, or when not using Combine, as the wrapper adds abstraction.

Question 3

Does CombineCoreBluetooth work with SwiftUI for real-time updates?

Accepted Answer

Yes, since it's built on Combine, you can integrate publishers with SwiftUI's @Published properties or .onReceive modifiers to update UI based on Bluetooth events, making it seamless for reactive interfaces.

Question 4

How to handle errors in CombineCoreBluetooth publishers?

Accepted Answer

Errors are propagated through Combine's completion events in publishers. Handle them in the receiveCompletion closure of sinks, similar to standard Combine error handling, ensuring robust error management for Bluetooth operations.

Question 5

Is CombineCoreBluetooth production-ready for central mode apps?

Accepted Answer

The README confirms it has been tested in production for central manager operations like scanning and connecting, so it's reliable for client roles. However, peripheral mode is less proven and should be used cautiously.

Question 6

What are the performance costs of using publishers over delegates?

Accepted Answer

Performance overhead is minimal since it wraps CoreBluetooth directly, but publishers introduce some stream management latency. For most apps, this is negligible compared to the benefits of reactive code organization.

CombineCoreBluetooth

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